beremiz

Fix wxHMI example after upgrading wxGlade

2018-08-13, Andrey Skvortsov
64bb520009f3
file isExecutable
Fix wxHMI example after upgrading wxGlade

Newer wxGlade generates code to initialize GridSizer's with empty
elements.

...
grid_sizer_1.Add(self.window_1, 1, wx.ALIGN_CENTER, 0)
sizer_2.Add((0, 0), 0, 0, 0)
sizer_2.Add((0, 0), 0, 0, 0)
sizer_2.Add((0, 0), 0, 0, 0)
sizer_2.Add((0, 0), 0, 0, 0)
...

That causes following traceback, if new buttons are added
to already full sizer.

PLCobject : Traceback (most recent call last):

File "./Beremiz_service.py", line 389, in default_evaluator
res = (tocall(*args, **kwargs), None)

File "/tmp/tmpQS8ct2/runtime_0.py", line 540, in _runtime_0_start
wx.MessageBox(_("Please stop PLC to close"))

File "/tmp/tmpQS8ct2/runtime_0.py", line 504, in Init
lambda axis:( MakeButtonFunc(self, sizer, axis+"axisMinus"),

File "/tmp/tmpQS8ct2/runtime_0.py", line 502, in
lambda btname: MakeButtonFunc(self, sizer, btname), ActionButtons)

File "/tmp/tmpQS8ct2/runtime_0.py", line 461, in MakeButtonFunc
print sizer, btname

File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk3/wx/_core.py", line 14453, in Add
return _core_.Sizer_Add(*args, **kwargs)

PyAssertionError: C++ assertion "Assert failure" failed at
../src/common/sizer.cpp(1401) in DoInsert(): too many items (11 > 2*5)
in grid sizer (maybe you should omit the number of either rows or
columns?)


Tested with wxGlade version 0.8.3
Closes #41
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# This file is part of Beremiz runtime.
#
# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
#
# See COPYING.Runtime file for copyrights details.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
from __future__ import absolute_import
from __future__ import print_function
import socket
import threading
import zeroconf
service_type = '_PYRO._tcp.local.'
class ServicePublisher(object):
def __init__(self):
# type: fully qualified service type name
self.serviceproperties = {'description': 'Beremiz remote PLC'}
self.name = None
self.ip_32b = None
self.port = None
self.server = None
self.service_name = None
self.retrytimer = None
def RegisterService(self, name, ip, port):
try:
self._RegisterService(name, ip, port)
except Exception:
self.retrytimer = threading.Timer(2, self.RegisterService, [name, ip, port])
self.retrytimer.start()
def _RegisterService(self, name, ip, port):
# name: fully qualified service name
self.service_name = 'Beremiz_%s.%s' % (name, service_type)
self.name = name
self.port = port
self.server = zeroconf.Zeroconf()
print("MDNS brodcasting on :" + ip)
if ip == "0.0.0.0":
ip = self.gethostaddr()
print("MDNS brodcasted service address :" + ip)
self.ip_32b = socket.inet_aton(ip)
self.server.register_service(
zeroconf.ServiceInfo(service_type,
self.service_name,
self.ip_32b,
self.port,
properties=self.serviceproperties))
self.retrytimer = None
def UnRegisterService(self):
if self.retrytimer is not None:
self.retrytimer.cancel()
if self.server is not None:
self.server.unregister_service(
zeroconf.ServiceInfo(service_type,
self.service_name,
self.ip_32b,
self.port,
properties=self.serviceproperties))
self.server.close()
self.server = None
def gethostaddr(self, dst='224.0.1.41'):
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
try:
s.connect((dst, 7))
(host, _port) = s.getsockname()
s.close()
if host != '0.0.0.0':
return host
except Exception:
pass
return socket.gethostbyname(socket.gethostname())